From a one sided article... It seems more like a witch hunt than a pursuit of justice. I'm curious as to why the mother was up on charges when it was the father who bought the gun for the kid.
Parents have long been on the hook for the criminal actions of their kids. Back in the 90s, friends of mine were held to accountability by the court for some vandalism two of their kids committed. They weren't formally charged but the fallout was not pleasant for them. I was a bit miffed over it. When one of the kids complained to his dad, "But you didn't [commit the crime], I did!" To which his dad replied, "You see son, sometimes the consequences of your sins affect those who are innocent..."